Vertical Lines Repairable? LC-46D64U

[eTanium]

I'm looking to buy a TV off of eBay to repair. It has vertical banding (see link or attachments) and what not. I talked with a TV tech about it, and he said, "anything that effects the picture like that, almost 90% of the time, it's the panel, which can't be replaced."

If the banding could be fixed easily, maybe by just replacing some bulging caps and what not, then I would like to purchase it to fix. I already have a LC-46D64U with a band panel, so I can use that as a parts TV.


So, the question here is, how much of a gamble would it be to buy this TV off of eBay and expect to be able to repair it? As long as it isn't the panel going bad, I have all the pieces needed to repair it.

Thanks.

[mockingbird]

Re: Vertical Lines Repairable? LC-46D64U

Look at the second pic...

The panel is clearly cracked in the middle...

[eTanium]

Re: Vertical Lines Repairable? LC-46D64U

Look at the second pic...

The panel is clearly cracked in the middle...

When we say the panel is cracked, we're speaking about the glass, no? Aside from the broken glass, this TV should be working fine, right?

My other TV that I am using for parts has a 100% perfect glass front panel. The only thing wrong with it is the LCD control board/panel, from what I've been told.

So, I should be able to make one good working TV out of the two. Please correct me if I am wrong.

[multimeter]

Re: Vertical Lines Repairable? LC-46D64U

not very often you see a tv with a separate glass panel ,i think this one is a complete lcd panel, glass an all,big gamble im afraid,i would walk away,unless you want it for stock boards/parts,it also could be a tab bonding issue,if it does have a separate glass panel, which would only be a bodge repair,or a tcon issue,to many negatives

[tom66]

Re: Vertical Lines Repairable? LC-46D64U

It's definitely a cracked screen. Only worth parts. $190 for that is crazy.

Sometimes the crack damages the TFT lines driving the transistors, causing lines and dead pixels.

[eTanium]

Re: Vertical Lines Repairable? LC-46D64U

I'm a little confused.


So, there is the glass panel, and that houses the liquid crystal. If the glass is cracked, the liquid crystals are damaged. The T-con board sends signals to the screen and turns on/off the crystals to display the picture. Is there any other board, that can't be seen from the rear of the TV with the panel off, that interacts with the liquid crystals and the T-Con board? I was under the impression that there was another board that behind all the metal (see attachment).

I was hoping that I could take that board, if it does exist, and put it into the TV that I already have and have been trying to repair. The TV will turn on, but not display any picture whatsoever. A TV technician told me that the "panel was bad, and the TV isn't worth fixing because you can't just simply buy a replacement panel - you need to find a parts TV with a good one and swap them."

I was hoping to do buy this TV from e-bay, which I thought had a good panel (and might still, because I am confused on what the panel actually is), and use it to fix my currently broken TV.

If I could use this eBay TV to fix my currently broken TV, what do you think would be a good price on it?

Please advise, thanks.

[joshnz]

Re: Vertical Lines Repairable? LC-46D64U

The panel is the sheet of glass that has the crystals that makes the picture if it has a crack as the one in the picture seems to show no board will fix it.

With your tv a bad panel won't cause no picture the back lights maybe faulty or a board that controls the panel.

[eTanium]

Re: Vertical Lines Repairable? LC-46D64U

The panel is the sheet of glass that has the crystals that makes the picture if it has a crack as the one in the picture seems to show no board will fix it.

With your tv a bad panel won't cause no picture the back lights maybe faulty or a board that controls the panel.

I was told it wasn't worth trying to fix, but new TV's are out of my price range right now, and my non-working TV has some really good specs to it - I want to bring it back to life if I can, on the cheap.

[joshnz]

Re: Vertical Lines Repairable? LC-46D64U

I was told it wasn't worth trying to fix

by one of us here or the tv repairman?

[budm]

Re: Vertical Lines Repairable? LC-46D64U

It has cracked LCD panel, walk away from it unless you want to spend a lot on money for new LCD panel assembly.

[eTanium]

Re: Vertical Lines Repairable? LC-46D64U

by one of us here or the tv repairman?

A Sharp Certified technician.

It has cracked LCD panel, walk away from it unless you want to spend a lot on money for new LCD panel assembly.

I still think the panel on my non-working TV is good (not cracked, and was working fine one day, and dead the next. A panel doesn't just die completely like that, does it? I thought if the whole thing fails to display a picture, that is most likely an internal board issue, and not the panel itself.

[joshnz]

Re: Vertical Lines Repairable? LC-46D64U

A panel doesn't just die completely like that, does it? I thought if the whole thing fails to display a picture, that is most likely an internal board issue, and not the panel itself.

That is correct from what I understand.
With your tv does the power light come on or do anything?

[eTanium]

Re: Vertical Lines Repairable? LC-46D64U

That is correct from what I understand.
With your tv does the power light come on or do anything?

Yes, the power light comes on, but throws an error. I can get it to boot into service menu (or so I believe), but there is no picture. I have another thread open on this TV. I was hoping to take the panel out of my non-working TV and put it into the one that I was thinking of buying off of eBay.

I have replaced the power supply board, the main board, and the tuner board, but it still doesn't boot with any picture/sound.

[joshnz]

Re: Vertical Lines Repairable? LC-46D64U

well you never got back to the guy in this thread https://www.badcaps.net/forum/showthread.php?t=19700
or this one https://www.badcaps.net/forum/showthread.php?t=20032

What does the error message point to.

[budm]

Re: Vertical Lines Repairable? LC-46D64U

I am talking about the panel as shown on the picture in post 1.

[joshnz]

Re: Vertical Lines Repairable? LC-46D64U

Anyway getting that tv from ebay will be no help to you.

[eTanium]

Re: Vertical Lines Repairable? LC-46D64U

well you never got back to the guy in this thread https://www.badcaps.net/forum/showthread.php?t=19700
or this one https://www.badcaps.net/forum/showthread.php?t=20032

What does the error message point to.

I am talking about the panel as shown on the picture in post 1.

I was not able to answer the questions on the post about my non-working TV, due to the fact that the TV was at the repair man's shop. I got it back yesterday, and was told that it had a bad panel.

I looked on eBay and found the same model TV, hoping that it would have a good panel that I could swap with my TV's bad panel.

[vinceroger69]

Re: Vertical Lines Repairable? LC-46D64U

did you bid on this in the end the winning bid 190.00 us dollars.